{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["material", "enabling technology", "concept or principle", "engineering feature", "machine or equipment", "process parameter"], "input": "The PolyJet technique reproduced details more accurately with a very good surface finish and smoothness ."}
{"material": [], "enabling technology": [], "concept or principle": ["smoothness"], "engineering feature": ["surface finish"], "machine or equipment": [], "process parameter": []}